include/Geant4/G4EmUtility.hh

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0025 //
0026 //
0027 // Geant4 header G4EmUtility
0028 //
0029 // Author V.Ivanchenko 14.03.2022
0030 //
0031 // Utilities used at initialisation of EM physics
0032 //
0033
0034 #ifndef G4EmUtility_h
0035 #define G4EmUtility_h 1
0036
0037 #include <vector>
0038 #include "globals.hh"
0039 #include "G4Region.hh"
0040 #include "G4PhysicsTable.hh"
0041 #include "G4EmTableType.hh"
0042 #include "G4ParticleDefinition.hh"
0043 #include "G4VDiscreteProcess.hh"
0044 #include "G4LossTableBuilder.hh"
0045 #include "G4Material.hh"
0046 #include "G4Element.hh"
0047 #include "G4Isotope.hh"
0048 #include "G4DataVector.hh"
0049 #include "G4VEmModel.hh"
0050
0051 class G4EmUtility
0052 {
0053 public:
0054
0055   // find G4Region pointer by name, by default no verbosity
0056   static const G4Region* FindRegion(const G4String& regionName,
0057                                     const G4int verbose = 0);
0058
0059   // sample random G4Element for the case if cross section is
0060   // proportional to the number of electrons in an atom
0061   static const G4Element* SampleRandomElement(const G4Material*);
0062
0063   // sample random G4Isotope
0064   static const G4Isotope* SampleRandomIsotope(const G4Element*);
0065
0066   // find energy of cross section maximum for all couples
0067   static std::vector<G4double>* FindCrossSectionMax(G4PhysicsTable*);
0068   static std::vector<G4double>*
0069   FindCrossSectionMax(G4VDiscreteProcess*, const G4ParticleDefinition*);
0070
0071   // fill structure describing more than one peak in cross sections
0072   static std::vector<G4TwoPeaksXS*>*
0073   FillPeaksStructure(G4PhysicsTable*, G4LossTableBuilder*);
0074
0075   // model initialisation
0076   static void InitialiseElementSelectors(G4VEmModel*,
0077                                          const G4ParticleDefinition*,
0078                                          const G4DataVector& cuts,
0079                                          const G4double emin,
0080                                          const G4double emax);
0081 };
0082
0083 #endif
0084
0085